| 摘要 |
PURPOSE: A thermal power generating method and apparatus is provided to increase power generation efficiency by obtaining shaft power of generator through the expanded wet vapor of two-phase fluid. CONSTITUTION: A method comprises the first step(21) of operating a start unit and injecting a high pressure air into a combustor; the second step(22) of burning fuel by the high pressure air injected into the combustor, and generating a high pressure combustion gas; the third step(23) of generating a high pressure wet vapor by permitting the heated high pressure combustion gas to be introduced into a mixer and mixing the combustion gas with water; the fourth step(24) of expanding the wet vapor by allowing the wet vapor discharged from the mixer to be introduced into an expander through the first line, and rotating the expander; the fifth step(25) of injecting the wet vapor which is discharged from the expander and partially converted into a liquid state, into the first gas-liquid separator, transferring the separated gas to a non-condensible gas compressor and re-injecting the separated liquid to the mixer through the fourth line; the sixth step(26) of introducing the wet vapor separated by the first gas-liquid separator into the non-condensible gas compressor through the second line, and compressing the gas to an atmospheric pressure; the seventh step(27) of injecting the gas-liquid mixture fluid(two-phase fluid) discharged from the non-condensible gas compressor into the second gas-liquid separator, discharging the separated gas to outside, and re-injecting the separated liquid into the mixer; and the eighth step(28) of stopping operation of the start unit, and generating compressed gas in the air compressor mounted to the shaft of generator.
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